Find plants at nurseries specializing in aquatic plants, at aquarium
supply stores or any pet supply store that sells tropical fish. There
are three basic classes of plants to look for: floaters, submersibles,
and semi-aquatics, or plants with submersed roots and foliage visible
above the surface. Mix up different types, or use them singly.
Some of the plants you come across at nurseries are meant for larger
outdoor ponds. These can be used indoors as well, just keep in mind that
you will eventually need to replace them when they outgrow the space.
